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<div class="title">MCP23S17.cpp</div>  </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/*</span></div><div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment">  Created by Fabrizio Di Vittorio (fdivitto2013@gmail.com) - &lt;http://www.fabgl.com&gt;</span></div><div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment">  Copyright (c) 2019-2021 Fabrizio Di Vittorio.</span></div><div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment">  All rights reserved.</span></div><div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment">* Please contact fdivitto2013@gmail.com if you need a commercial license.</span></div><div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment">* This library and related software is available under GPL v3.</span></div><div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment">  FabGL is free software: you can redistribute it and/or modify</span></div><div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment">  it under the terms of the GNU General Public License as published by</span></div><div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment">  the Free Software Foundation, either version 3 of the License, or</span></div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment">  (at your option) any later version.</span></div><div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="comment">  FabGL is distributed in the hope that it will be useful,</span></div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="comment">  but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div><div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="comment">  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the</span></div><div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="comment">  GNU General Public License for more details.</span></div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="comment">  You should have received a copy of the GNU General Public License</span></div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="comment">  along with FabGL.  If not, see &lt;http://www.gnu.org/licenses/&gt;.</span></div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;</div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;</div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="preprocessor">#include &lt;string.h&gt;</span></div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;</div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="_m_c_p23_s17_8h.html">MCP23S17.h</a>&quot;</span></div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;</div><div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;</div><div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespacefabgl.html">fabgl</a> {</div><div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;</div><div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;</div><div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;</div><div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;</div><div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;</div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;MCP23S17::MCP23S17()</div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;  : m_SPIDevHandle(nullptr)</div><div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;{</div><div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;}</div><div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;</div><div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;</div><div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;MCP23S17::~MCP23S17()</div><div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;{</div><div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;  <a class="code" href="classfabgl_1_1_m_c_p23_s17_aaf81d3fdaf258088d7692fa70cece087.html#aaf81d3fdaf258088d7692fa70cece087">end</a>();</div><div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;}</div><div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;</div><div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;</div><div class="line"><a name="l00050"></a><span class="lineno"><a class="line" href="classfabgl_1_1_m_c_p23_s17_ab205baa284c3197865fef390a0304355.html#ab205baa284c3197865fef390a0304355">   50</a></span>&#160;<span class="keywordtype">bool</span> <a class="code" href="classfabgl_1_1_m_c_p23_s17_ab205baa284c3197865fef390a0304355.html#ab205baa284c3197865fef390a0304355">MCP23S17::begin</a>(<span class="keywordtype">int</span> MISO, <span class="keywordtype">int</span> MOSI, <span class="keywordtype">int</span> CLK, <span class="keywordtype">int</span> CS, <span class="keywordtype">int</span> CSActiveState, <span class="keywordtype">int</span> host)</div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;{</div><div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;  <span class="comment">// defaults</span></div><div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;  <span class="keywordtype">int</span> defMISO = 35;</div><div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;  <span class="keywordtype">int</span> defMOSI = 12;</div><div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;  <span class="keywordtype">int</span> defCLK  = 14;</div><div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;  <span class="keywordtype">int</span> defCS   = -1;</div><div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;  <span class="keywordflow">switch</span> (getChipPackage()) {</div><div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;    <span class="keywordflow">case</span> <a class="code" href="group___enumerations_ga5d4cf45276f202b6a848d0baf97adea0.html#gga5d4cf45276f202b6a848d0baf97adea0a5d8d61514b6162c2cf210601418a160f">ChipPackage::ESP32PICOD4</a>:</div><div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;      <span class="comment">// setup for TTGO VGA32</span></div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;      defMISO = 2;</div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;      defMOSI = 12;</div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;      <span class="keywordflow">break</span>;</div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;    <span class="keywordflow">case</span> <a class="code" href="group___enumerations_ga5d4cf45276f202b6a848d0baf97adea0.html#gga5d4cf45276f202b6a848d0baf97adea0ade1d97e9e28e4b67a2a96c2b400ca4b1">ChipPackage::ESP32D0WDQ5</a>:</div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;      <span class="comment">// setup for FabGL compatible board</span></div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;      defCS = 13;</div><div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;      <span class="keywordflow">if</span> (CSActiveState == -1)</div><div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;        CSActiveState = 1;</div><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;      <span class="keywordflow">break</span>;</div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;    <span class="keywordflow">default</span>:</div><div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;      <span class="keywordflow">break</span>;</div><div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;  }</div><div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;</div><div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;  <span class="keywordflow">if</span> (MISO == -1)</div><div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;    MISO = defMISO;</div><div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;  <span class="keywordflow">if</span> (MOSI == -1)</div><div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;    MOSI = defMOSI;</div><div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;  <span class="keywordflow">if</span> (CS == -1)</div><div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;    CS = defCS;</div><div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;  <span class="keywordflow">if</span> (CLK == -1)</div><div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;    CLK = defCLK;</div><div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;</div><div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;  m_MISO    = int2gpio(MISO);</div><div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;  m_MOSI    = int2gpio(MOSI);</div><div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;  m_CLK     = int2gpio(CLK);</div><div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;  m_CS      = int2gpio(CS);</div><div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;  m_SPIHost = (spi_host_device_t) host;</div><div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;</div><div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;  <span class="keywordtype">bool</span> r = SPIBegin(CSActiveState);</div><div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;  <span class="keywordflow">if</span> (r) {</div><div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;    <span class="comment">// disable sequential mode</span></div><div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;    <span class="comment">// select bank 0</span></div><div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;    m_IOCON[0] = MCP_IOCON_SEQOP;</div><div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;    <a class="code" href="classfabgl_1_1_m_c_p23_s17_a757ff4f7b16a40109207981a8449b68b.html#a757ff4f7b16a40109207981a8449b68b">writeReg</a>(MCP_IOCON, m_IOCON[0]);</div><div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;    r = <a class="code" href="classfabgl_1_1_m_c_p23_s17_ae09cec89e003ed8907ffcae9afcc86aa.html#ae09cec89e003ed8907ffcae9afcc86aa">readReg</a>(MCP_IOCON) == m_IOCON[0];</div><div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;  }</div><div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;  <span class="keywordflow">if</span> (!r)</div><div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;    <a class="code" href="classfabgl_1_1_m_c_p23_s17_aaf81d3fdaf258088d7692fa70cece087.html#aaf81d3fdaf258088d7692fa70cece087">end</a>();</div><div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;  <span class="keywordflow">return</span> r;</div><div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;}</div><div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;</div><div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;</div><div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;<span class="comment">// - disable sequential mode</span></div><div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;<span class="comment">// - select bank 0</span></div><div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;<span class="comment">// - enable hardware address</span></div><div class="line"><a name="l00105"></a><span class="lineno"><a class="line" href="classfabgl_1_1_m_c_p23_s17_a51561306fb349bc2978919958cbfda52.html#a51561306fb349bc2978919958cbfda52">  105</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="classfabgl_1_1_m_c_p23_s17_a51561306fb349bc2978919958cbfda52.html#a51561306fb349bc2978919958cbfda52">MCP23S17::initDevice</a>(uint8_t hwAddr)</div><div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;{</div><div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;  <span class="keywordflow">if</span> (hwAddr &lt; MCP_MAXDEVICES)</div><div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;    <a class="code" href="classfabgl_1_1_m_c_p23_s17_a757ff4f7b16a40109207981a8449b68b.html#a757ff4f7b16a40109207981a8449b68b">writeReg</a>(MCP_IOCON, MCP_IOCON_SEQOP | MCP_IOCON_HAEN);</div><div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;}</div><div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;</div><div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;</div><div class="line"><a name="l00112"></a><span class="lineno"><a class="line" href="classfabgl_1_1_m_c_p23_s17_aaf81d3fdaf258088d7692fa70cece087.html#aaf81d3fdaf258088d7692fa70cece087">  112</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="classfabgl_1_1_m_c_p23_s17_aaf81d3fdaf258088d7692fa70cece087.html#aaf81d3fdaf258088d7692fa70cece087">MCP23S17::end</a>()</div><div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;{</div><div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;  SPIEnd();</div><div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;}</div><div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;</div><div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;</div><div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;<span class="keywordtype">bool</span> MCP23S17::SPIBegin(<span class="keywordtype">int</span> CSActiveState)</div><div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;{</div><div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;  spi_bus_config_t busconf = { }; <span class="comment">// zero init</span></div><div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;  busconf.mosi_io_num     = m_MOSI;</div><div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;  busconf.miso_io_num     = m_MISO;</div><div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;  busconf.sclk_io_num     = m_CLK;</div><div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;  busconf.quadwp_io_num   = -1;</div><div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;  busconf.quadhd_io_num   = -1;</div><div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;  busconf.flags           = SPICOMMON_BUSFLAG_MASTER;</div><div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;  <span class="keyword">auto</span> r = spi_bus_initialize(m_SPIHost, &amp;busconf, MCP_DMACHANNEL);</div><div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;  <span class="keywordflow">if</span> (r == ESP_OK || r == ESP_ERR_INVALID_STATE) {  <span class="comment">// ESP_ERR_INVALID_STATE, maybe spi_bus_initialize already called</span></div><div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;    spi_device_interface_config_t devconf = { };  <span class="comment">// zero init</span></div><div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;    devconf.mode           = 0;</div><div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;    devconf.clock_speed_hz = MCP_SPI_FREQ;</div><div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;    devconf.spics_io_num   = m_CS;</div><div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;    devconf.flags          = (CSActiveState == 1 ? SPI_DEVICE_POSITIVE_CS : 0);</div><div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;    devconf.queue_size     = 1;</div><div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;    r = spi_bus_add_device(m_SPIHost, &amp;devconf, &amp;m_SPIDevHandle);</div><div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;    <span class="keywordflow">if</span> (r != ESP_OK)</div><div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;      spi_bus_free(m_SPIHost);</div><div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;    <span class="keywordflow">return</span> r == ESP_OK;</div><div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;  }</div><div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;}</div><div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;</div><div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;</div><div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;<span class="keywordtype">void</span> MCP23S17::SPIEnd()</div><div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;{</div><div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;  <span class="keywordflow">if</span> (m_SPIDevHandle) {</div><div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;    spi_bus_remove_device(m_SPIDevHandle);</div><div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;    m_SPIDevHandle = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;    spi_bus_free(m_SPIHost);  <span class="comment">// this will not free bus if there is a device still connected (ie sdcard)</span></div><div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;  }</div><div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;}</div><div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;</div><div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;</div><div class="line"><a name="l00154"></a><span class="lineno"><a class="line" href="classfabgl_1_1_m_c_p23_s17_a757ff4f7b16a40109207981a8449b68b.html#a757ff4f7b16a40109207981a8449b68b">  154</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="classfabgl_1_1_m_c_p23_s17_a757ff4f7b16a40109207981a8449b68b.html#a757ff4f7b16a40109207981a8449b68b">MCP23S17::writeReg</a>(uint8_t addr, uint8_t value, uint8_t hwAddr)</div><div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;{</div><div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;  spi_device_acquire_bus(m_SPIDevHandle, portMAX_DELAY);</div><div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;</div><div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;  uint8_t txdata[3] = { (uint8_t)(0b01000000 | (hwAddr &lt;&lt; 1)), addr, value };</div><div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;  spi_transaction_t ta;</div><div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;  ta.flags      = 0;</div><div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;  ta.length     = 24;</div><div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;  ta.rxlength   = 0;</div><div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;  ta.rx_buffer  = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;  ta.tx_buffer  = txdata;</div><div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;  spi_device_transmit(m_SPIDevHandle, &amp;ta);</div><div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;</div><div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;  spi_device_release_bus(m_SPIDevHandle);</div><div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;}</div><div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;</div><div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;</div><div class="line"><a name="l00171"></a><span class="lineno"><a class="line" href="classfabgl_1_1_m_c_p23_s17_ae09cec89e003ed8907ffcae9afcc86aa.html#ae09cec89e003ed8907ffcae9afcc86aa">  171</a></span>&#160;uint8_t <a class="code" href="classfabgl_1_1_m_c_p23_s17_ae09cec89e003ed8907ffcae9afcc86aa.html#ae09cec89e003ed8907ffcae9afcc86aa">MCP23S17::readReg</a>(uint8_t addr, uint8_t hwAddr)</div><div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;{</div><div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;  spi_device_acquire_bus(m_SPIDevHandle, portMAX_DELAY);</div><div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;</div><div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;  uint8_t txdata[3] = { (uint8_t)(0b01000001 | (hwAddr &lt;&lt; 1)), addr };</div><div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;  uint8_t rxdata[3] = { 0 };</div><div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;  spi_transaction_t ta;</div><div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;  ta.flags      = 0;</div><div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;  ta.length     = 24;</div><div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;  ta.rxlength   = 24;</div><div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;  ta.rx_buffer  = rxdata;</div><div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160;  ta.tx_buffer  = txdata;</div><div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;  uint8_t r = 0;</div><div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160;  <span class="keywordflow">if</span> (spi_device_transmit(m_SPIDevHandle, &amp;ta) == ESP_OK)</div><div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160;    r = rxdata[2];</div><div class="line"><a name="l00186"></a><span class="lineno">  186</span>&#160;</div><div class="line"><a name="l00187"></a><span class="lineno">  187</span>&#160;  spi_device_release_bus(m_SPIDevHandle);</div><div class="line"><a name="l00188"></a><span class="lineno">  188</span>&#160;</div><div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;  <span class="keywordflow">return</span> r;</div><div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160;}</div><div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;</div><div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;</div><div class="line"><a name="l00193"></a><span class="lineno"><a class="line" href="classfabgl_1_1_m_c_p23_s17_a29921f863c2024cd62bb9596f93f9f0e.html#a29921f863c2024cd62bb9596f93f9f0e">  193</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="classfabgl_1_1_m_c_p23_s17_a29921f863c2024cd62bb9596f93f9f0e.html#a29921f863c2024cd62bb9596f93f9f0e">MCP23S17::writeReg16</a>(uint8_t addr, uint16_t value, uint8_t hwAddr)</div><div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;{</div><div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;  spi_device_acquire_bus(m_SPIDevHandle, portMAX_DELAY);</div><div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;</div><div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;  uint8_t txdata[4] = { (uint8_t)(0b01000000 | (hwAddr &lt;&lt; 1)), addr, (uint8_t)(value &amp; 0xff), (uint8_t)(value &gt;&gt; 8) };</div><div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;  spi_transaction_t ta;</div><div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;  ta.flags      = 0;</div><div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160;  ta.length     = 32;</div><div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;  ta.rxlength   = 0;</div><div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160;  ta.rx_buffer  = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;  ta.tx_buffer  = txdata;</div><div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;  spi_device_transmit(m_SPIDevHandle, &amp;ta);</div><div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160;</div><div class="line"><a name="l00206"></a><span class="lineno">  206</span>&#160;  spi_device_release_bus(m_SPIDevHandle);</div><div class="line"><a name="l00207"></a><span class="lineno">  207</span>&#160;}</div><div class="line"><a name="l00208"></a><span class="lineno">  208</span>&#160;</div><div class="line"><a name="l00209"></a><span class="lineno">  209</span>&#160;</div><div class="line"><a name="l00210"></a><span class="lineno"><a class="line" href="classfabgl_1_1_m_c_p23_s17_a6ce7f6e8f2563790be2cb010d99a2947.html#a6ce7f6e8f2563790be2cb010d99a2947">  210</a></span>&#160;uint16_t <a class="code" href="classfabgl_1_1_m_c_p23_s17_a6ce7f6e8f2563790be2cb010d99a2947.html#a6ce7f6e8f2563790be2cb010d99a2947">MCP23S17::readReg16</a>(uint8_t addr, uint8_t hwAddr)</div><div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160;{</div><div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;  spi_device_acquire_bus(m_SPIDevHandle, portMAX_DELAY);</div><div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160;</div><div class="line"><a name="l00214"></a><span class="lineno">  214</span>&#160;  uint8_t txdata[4] = { (uint8_t)(0b01000001 | (hwAddr &lt;&lt; 1)), addr };</div><div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160;  uint8_t rxdata[4] = { 0 };</div><div class="line"><a name="l00216"></a><span class="lineno">  216</span>&#160;  spi_transaction_t ta;</div><div class="line"><a name="l00217"></a><span class="lineno">  217</span>&#160;  ta.flags      = 0;</div><div class="line"><a name="l00218"></a><span class="lineno">  218</span>&#160;  ta.length     = 32;</div><div class="line"><a name="l00219"></a><span class="lineno">  219</span>&#160;  ta.rxlength   = 32;</div><div class="line"><a name="l00220"></a><span class="lineno">  220</span>&#160;  ta.rx_buffer  = rxdata;</div><div class="line"><a name="l00221"></a><span class="lineno">  221</span>&#160;  ta.tx_buffer  = txdata;</div><div class="line"><a name="l00222"></a><span class="lineno">  222</span>&#160;  uint16_t r = 0;</div><div class="line"><a name="l00223"></a><span class="lineno">  223</span>&#160;  <span class="keywordflow">if</span> (spi_device_transmit(m_SPIDevHandle, &amp;ta) == ESP_OK)</div><div class="line"><a name="l00224"></a><span class="lineno">  224</span>&#160;    r = rxdata[2] | (rxdata[3] &lt;&lt; 8);</div><div class="line"><a name="l00225"></a><span class="lineno">  225</span>&#160;</div><div class="line"><a name="l00226"></a><span class="lineno">  226</span>&#160;  spi_device_release_bus(m_SPIDevHandle);</div><div class="line"><a name="l00227"></a><span class="lineno">  227</span>&#160;</div><div class="line"><a name="l00228"></a><span class="lineno">  228</span>&#160;  <span class="keywordflow">return</span> r;</div><div class="line"><a name="l00229"></a><span class="lineno">  229</span>&#160;}</div><div class="line"><a name="l00230"></a><span class="lineno">  230</span>&#160;</div><div class="line"><a name="l00231"></a><span class="lineno">  231</span>&#160;</div><div class="line"><a name="l00232"></a><span class="lineno"><a class="line" href="classfabgl_1_1_m_c_p23_s17_a193701415e90c6513fa98fd5303ad8c8.html#a193701415e90c6513fa98fd5303ad8c8">  232</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="classfabgl_1_1_m_c_p23_s17_a193701415e90c6513fa98fd5303ad8c8.html#a193701415e90c6513fa98fd5303ad8c8">MCP23S17::enableINTMirroring</a>(<span class="keywordtype">bool</span> value, uint8_t hwAddr)</div><div class="line"><a name="l00233"></a><span class="lineno">  233</span>&#160;{</div><div class="line"><a name="l00234"></a><span class="lineno">  234</span>&#160;  <a class="code" href="classfabgl_1_1_m_c_p23_s17_a757ff4f7b16a40109207981a8449b68b.html#a757ff4f7b16a40109207981a8449b68b">writeReg</a>(MCP_IOCON, value ? m_IOCON[hwAddr] | MCP_IOCON_MIRROR : m_IOCON[hwAddr] &amp; ~MCP_IOCON_MIRROR, hwAddr);</div><div class="line"><a name="l00235"></a><span class="lineno">  235</span>&#160;}</div><div class="line"><a name="l00236"></a><span class="lineno">  236</span>&#160;</div><div class="line"><a name="l00237"></a><span class="lineno">  237</span>&#160;</div><div class="line"><a name="l00238"></a><span class="lineno"><a class="line" href="classfabgl_1_1_m_c_p23_s17_abab6c21e5930b8616afec12a6b0778ca.html#abab6c21e5930b8616afec12a6b0778ca">  238</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="classfabgl_1_1_m_c_p23_s17_abab6c21e5930b8616afec12a6b0778ca.html#abab6c21e5930b8616afec12a6b0778ca">MCP23S17::enableINTOpenDrain</a>(<span class="keywordtype">bool</span> value, uint8_t hwAddr)</div><div class="line"><a name="l00239"></a><span class="lineno">  239</span>&#160;{</div><div class="line"><a name="l00240"></a><span class="lineno">  240</span>&#160;  <a class="code" href="classfabgl_1_1_m_c_p23_s17_a757ff4f7b16a40109207981a8449b68b.html#a757ff4f7b16a40109207981a8449b68b">writeReg</a>(MCP_IOCON, value ? m_IOCON[hwAddr] | MCP_IOCON_ODR : m_IOCON[hwAddr] &amp; ~MCP_IOCON_ODR, hwAddr);</div><div class="line"><a name="l00241"></a><span class="lineno">  241</span>&#160;}</div><div class="line"><a name="l00242"></a><span class="lineno">  242</span>&#160;</div><div class="line"><a name="l00243"></a><span class="lineno">  243</span>&#160;</div><div class="line"><a name="l00244"></a><span class="lineno"><a class="line" href="classfabgl_1_1_m_c_p23_s17_a9c2b2fb01c26e9d23bf985a960157429.html#a9c2b2fb01c26e9d23bf985a960157429">  244</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="classfabgl_1_1_m_c_p23_s17_a9c2b2fb01c26e9d23bf985a960157429.html#a9c2b2fb01c26e9d23bf985a960157429">MCP23S17::setINTActiveHigh</a>(<span class="keywordtype">bool</span> value, uint8_t hwAddr)</div><div class="line"><a name="l00245"></a><span class="lineno">  245</span>&#160;{</div><div class="line"><a name="l00246"></a><span class="lineno">  246</span>&#160;  <a class="code" href="classfabgl_1_1_m_c_p23_s17_a757ff4f7b16a40109207981a8449b68b.html#a757ff4f7b16a40109207981a8449b68b">writeReg</a>(MCP_IOCON, value ? m_IOCON[hwAddr] | MCP_IOCON_INTPOL : m_IOCON[hwAddr] &amp; ~MCP_IOCON_INTPOL, hwAddr);</div><div class="line"><a name="l00247"></a><span class="lineno">  247</span>&#160;}</div><div class="line"><a name="l00248"></a><span class="lineno">  248</span>&#160;</div><div class="line"><a name="l00249"></a><span class="lineno">  249</span>&#160;</div><div class="line"><a name="l00250"></a><span class="lineno"><a class="line" href="classfabgl_1_1_m_c_p23_s17_a0f75f7eae543df606255fb17aaff4fcd.html#a0f75f7eae543df606255fb17aaff4fcd">  250</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="classfabgl_1_1_m_c_p23_s17_a0f75f7eae543df606255fb17aaff4fcd.html#a0f75f7eae543df606255fb17aaff4fcd">MCP23S17::configureGPIO</a>(<span class="keywordtype">int</span> gpio, <a class="code" href="group___enumerations_ga8389ac8ebb8a33d21364f84ddfa64c00.html#ga8389ac8ebb8a33d21364f84ddfa64c00">MCPDir</a> dir, <span class="keywordtype">bool</span> pullup, uint8_t hwAddr)</div><div class="line"><a name="l00251"></a><span class="lineno">  251</span>&#160;{</div><div class="line"><a name="l00252"></a><span class="lineno">  252</span>&#160;  uint8_t mask = MCP_GPIO2MASK(gpio);</div><div class="line"><a name="l00253"></a><span class="lineno">  253</span>&#160;  <span class="comment">// direction</span></div><div class="line"><a name="l00254"></a><span class="lineno">  254</span>&#160;  uint8_t reg = MCP_GPIO2REG(MCP_IODIR, gpio);</div><div class="line"><a name="l00255"></a><span class="lineno">  255</span>&#160;  <span class="keywordflow">if</span> (dir == <a class="code" href="group___enumerations_ga8389ac8ebb8a33d21364f84ddfa64c00.html#gga8389ac8ebb8a33d21364f84ddfa64c00a324118a6721dd6b8a9b9f4e327df2bf5">MCPDir::Input</a>)</div><div class="line"><a name="l00256"></a><span class="lineno">  256</span>&#160;    <a class="code" href="classfabgl_1_1_m_c_p23_s17_a757ff4f7b16a40109207981a8449b68b.html#a757ff4f7b16a40109207981a8449b68b">writeReg</a>(reg, <a class="code" href="classfabgl_1_1_m_c_p23_s17_ae09cec89e003ed8907ffcae9afcc86aa.html#ae09cec89e003ed8907ffcae9afcc86aa">readReg</a>(reg, hwAddr) | mask, hwAddr);</div><div class="line"><a name="l00257"></a><span class="lineno">  257</span>&#160;  <span class="keywordflow">else</span></div><div class="line"><a name="l00258"></a><span class="lineno">  258</span>&#160;    <a class="code" href="classfabgl_1_1_m_c_p23_s17_a757ff4f7b16a40109207981a8449b68b.html#a757ff4f7b16a40109207981a8449b68b">writeReg</a>(reg, <a class="code" href="classfabgl_1_1_m_c_p23_s17_ae09cec89e003ed8907ffcae9afcc86aa.html#ae09cec89e003ed8907ffcae9afcc86aa">readReg</a>(reg, hwAddr) &amp; ~mask, hwAddr);</div><div class="line"><a name="l00259"></a><span class="lineno">  259</span>&#160;  <span class="comment">// pull-up</span></div><div class="line"><a name="l00260"></a><span class="lineno">  260</span>&#160;  reg = MCP_GPIO2REG(MCP_GPPU, gpio);</div><div class="line"><a name="l00261"></a><span class="lineno">  261</span>&#160;  <a class="code" href="classfabgl_1_1_m_c_p23_s17_a757ff4f7b16a40109207981a8449b68b.html#a757ff4f7b16a40109207981a8449b68b">writeReg</a>(reg, (<a class="code" href="classfabgl_1_1_m_c_p23_s17_ae09cec89e003ed8907ffcae9afcc86aa.html#ae09cec89e003ed8907ffcae9afcc86aa">readReg</a>(reg, hwAddr) &amp; ~mask) | ((<span class="keywordtype">int</span>)pullup * mask), hwAddr);</div><div class="line"><a name="l00262"></a><span class="lineno">  262</span>&#160;}</div><div class="line"><a name="l00263"></a><span class="lineno">  263</span>&#160;</div><div class="line"><a name="l00264"></a><span class="lineno">  264</span>&#160;</div><div class="line"><a name="l00265"></a><span class="lineno"><a class="line" href="classfabgl_1_1_m_c_p23_s17_a1762512f6b6a1b4149af5778d048fa26.html#a1762512f6b6a1b4149af5778d048fa26">  265</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="classfabgl_1_1_m_c_p23_s17_a1762512f6b6a1b4149af5778d048fa26.html#a1762512f6b6a1b4149af5778d048fa26">MCP23S17::writeGPIO</a>(<span class="keywordtype">int</span> gpio, <span class="keywordtype">bool</span> value, uint8_t hwAddr)</div><div class="line"><a name="l00266"></a><span class="lineno">  266</span>&#160;{</div><div class="line"><a name="l00267"></a><span class="lineno">  267</span>&#160;  uint8_t olat = <a class="code" href="classfabgl_1_1_m_c_p23_s17_ae09cec89e003ed8907ffcae9afcc86aa.html#ae09cec89e003ed8907ffcae9afcc86aa">readReg</a>(MCP_GPIO2REG(MCP_OLAT, gpio), hwAddr);</div><div class="line"><a name="l00268"></a><span class="lineno">  268</span>&#160;  uint8_t mask = MCP_GPIO2MASK(gpio);</div><div class="line"><a name="l00269"></a><span class="lineno">  269</span>&#160;  uint8_t reg  = MCP_GPIO2REG(MCP_OLAT, gpio);</div><div class="line"><a name="l00270"></a><span class="lineno">  270</span>&#160;  <a class="code" href="classfabgl_1_1_m_c_p23_s17_a757ff4f7b16a40109207981a8449b68b.html#a757ff4f7b16a40109207981a8449b68b">writeReg</a>(reg, value ? olat | mask : olat &amp; ~mask, hwAddr);</div><div class="line"><a name="l00271"></a><span class="lineno">  271</span>&#160;}</div><div class="line"><a name="l00272"></a><span class="lineno">  272</span>&#160;</div><div class="line"><a name="l00273"></a><span class="lineno">  273</span>&#160;</div><div class="line"><a name="l00274"></a><span class="lineno"><a class="line" href="classfabgl_1_1_m_c_p23_s17_afe1923d1107ce527071d3d0b0dc50b3a.html#afe1923d1107ce527071d3d0b0dc50b3a">  274</a></span>&#160;<span class="keywordtype">bool</span> <a class="code" href="classfabgl_1_1_m_c_p23_s17_afe1923d1107ce527071d3d0b0dc50b3a.html#afe1923d1107ce527071d3d0b0dc50b3a">MCP23S17::readGPIO</a>(<span class="keywordtype">int</span> gpio, uint8_t hwAddr)</div><div class="line"><a name="l00275"></a><span class="lineno">  275</span>&#160;{</div><div class="line"><a name="l00276"></a><span class="lineno">  276</span>&#160;  <span class="keywordflow">return</span> <a class="code" href="classfabgl_1_1_m_c_p23_s17_ae09cec89e003ed8907ffcae9afcc86aa.html#ae09cec89e003ed8907ffcae9afcc86aa">readReg</a>(MCP_GPIO2REG(MCP_GPIO, gpio), hwAddr) &amp; MCP_GPIO2MASK(gpio);</div><div class="line"><a name="l00277"></a><span class="lineno">  277</span>&#160;}</div><div class="line"><a name="l00278"></a><span class="lineno">  278</span>&#160;</div><div class="line"><a name="l00279"></a><span class="lineno">  279</span>&#160;</div><div class="line"><a name="l00280"></a><span class="lineno"><a class="line" href="classfabgl_1_1_m_c_p23_s17_ac85086c7d62df2eace4d8fa2be5a6987.html#ac85086c7d62df2eace4d8fa2be5a6987">  280</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="classfabgl_1_1_m_c_p23_s17_ac85086c7d62df2eace4d8fa2be5a6987.html#ac85086c7d62df2eace4d8fa2be5a6987">MCP23S17::enableInterrupt</a>(<span class="keywordtype">int</span> gpio, <a class="code" href="group___enumerations_gacca22cd3567afc98587db31349ba00c7.html#gacca22cd3567afc98587db31349ba00c7">MCPIntTrigger</a> trigger, <span class="keywordtype">bool</span> defaultValue, uint8_t hwAddr)</div><div class="line"><a name="l00281"></a><span class="lineno">  281</span>&#160;{</div><div class="line"><a name="l00282"></a><span class="lineno">  282</span>&#160;  uint8_t mask = MCP_GPIO2MASK(gpio);</div><div class="line"><a name="l00283"></a><span class="lineno">  283</span>&#160;  <span class="comment">// set interrupt trigger</span></div><div class="line"><a name="l00284"></a><span class="lineno">  284</span>&#160;  <span class="keywordflow">if</span> (trigger == <a class="code" href="group___enumerations_gacca22cd3567afc98587db31349ba00c7.html#ggacca22cd3567afc98587db31349ba00c7a6ca33b1f5de2b2497a794ae17e9f25ed">MCPIntTrigger::DefaultChange</a>) {</div><div class="line"><a name="l00285"></a><span class="lineno">  285</span>&#160;    <span class="comment">// interrupt triggered when value is different than &quot;defaultValue)</span></div><div class="line"><a name="l00286"></a><span class="lineno">  286</span>&#160;    <a class="code" href="classfabgl_1_1_m_c_p23_s17_a757ff4f7b16a40109207981a8449b68b.html#a757ff4f7b16a40109207981a8449b68b">writeReg</a>(MCP_GPIO2REG(MCP_INTCON, gpio), <a class="code" href="classfabgl_1_1_m_c_p23_s17_ae09cec89e003ed8907ffcae9afcc86aa.html#ae09cec89e003ed8907ffcae9afcc86aa">readReg</a>(MCP_GPIO2REG(MCP_INTCON, gpio), hwAddr) | mask, hwAddr);</div><div class="line"><a name="l00287"></a><span class="lineno">  287</span>&#160;    <a class="code" href="classfabgl_1_1_m_c_p23_s17_a757ff4f7b16a40109207981a8449b68b.html#a757ff4f7b16a40109207981a8449b68b">writeReg</a>(MCP_GPIO2REG(MCP_DEFVAL, gpio), (<a class="code" href="classfabgl_1_1_m_c_p23_s17_ae09cec89e003ed8907ffcae9afcc86aa.html#ae09cec89e003ed8907ffcae9afcc86aa">readReg</a>(MCP_GPIO2REG(MCP_DEFVAL, gpio), hwAddr) &amp; ~mask) | ((<span class="keywordtype">int</span>)defaultValue * mask), hwAddr);</div><div class="line"><a name="l00288"></a><span class="lineno">  288</span>&#160;  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00289"></a><span class="lineno">  289</span>&#160;    <span class="comment">// interrupt triggered when value is different than previous value</span></div><div class="line"><a name="l00290"></a><span class="lineno">  290</span>&#160;    <a class="code" href="classfabgl_1_1_m_c_p23_s17_a757ff4f7b16a40109207981a8449b68b.html#a757ff4f7b16a40109207981a8449b68b">writeReg</a>(MCP_GPIO2REG(MCP_INTCON, gpio), <a class="code" href="classfabgl_1_1_m_c_p23_s17_ae09cec89e003ed8907ffcae9afcc86aa.html#ae09cec89e003ed8907ffcae9afcc86aa">readReg</a>(MCP_GPIO2REG(MCP_INTCON, gpio), hwAddr) &amp; ~mask, hwAddr);</div><div class="line"><a name="l00291"></a><span class="lineno">  291</span>&#160;  }</div><div class="line"><a name="l00292"></a><span class="lineno">  292</span>&#160;  <span class="comment">// enable interrupt</span></div><div class="line"><a name="l00293"></a><span class="lineno">  293</span>&#160;  <a class="code" href="classfabgl_1_1_m_c_p23_s17_a757ff4f7b16a40109207981a8449b68b.html#a757ff4f7b16a40109207981a8449b68b">writeReg</a>(MCP_GPIO2REG(MCP_GPINTEN, gpio), <a class="code" href="classfabgl_1_1_m_c_p23_s17_ae09cec89e003ed8907ffcae9afcc86aa.html#ae09cec89e003ed8907ffcae9afcc86aa">readReg</a>(MCP_GPIO2REG(MCP_GPINTEN, gpio), hwAddr) | mask, hwAddr);</div><div class="line"><a name="l00294"></a><span class="lineno">  294</span>&#160;}</div><div class="line"><a name="l00295"></a><span class="lineno">  295</span>&#160;</div><div class="line"><a name="l00296"></a><span class="lineno">  296</span>&#160;</div><div class="line"><a name="l00297"></a><span class="lineno"><a class="line" href="classfabgl_1_1_m_c_p23_s17_af8a4b526fa1bbd378c9a65410795159c.html#af8a4b526fa1bbd378c9a65410795159c">  297</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="classfabgl_1_1_m_c_p23_s17_af8a4b526fa1bbd378c9a65410795159c.html#af8a4b526fa1bbd378c9a65410795159c">MCP23S17::disableInterrupt</a>(<span class="keywordtype">int</span> gpio, uint8_t hwAddr)</div><div class="line"><a name="l00298"></a><span class="lineno">  298</span>&#160;{</div><div class="line"><a name="l00299"></a><span class="lineno">  299</span>&#160;  uint8_t reg = MCP_GPIO2REG(MCP_GPINTEN, gpio);</div><div class="line"><a name="l00300"></a><span class="lineno">  300</span>&#160;  <a class="code" href="classfabgl_1_1_m_c_p23_s17_a757ff4f7b16a40109207981a8449b68b.html#a757ff4f7b16a40109207981a8449b68b">writeReg</a>(reg, <a class="code" href="classfabgl_1_1_m_c_p23_s17_ae09cec89e003ed8907ffcae9afcc86aa.html#ae09cec89e003ed8907ffcae9afcc86aa">readReg</a>(reg, hwAddr) &amp; ~MCP_GPIO2MASK(gpio), hwAddr);</div><div class="line"><a name="l00301"></a><span class="lineno">  301</span>&#160;}</div><div class="line"><a name="l00302"></a><span class="lineno">  302</span>&#160;</div><div class="line"><a name="l00303"></a><span class="lineno">  303</span>&#160;</div><div class="line"><a name="l00304"></a><span class="lineno"><a class="line" href="classfabgl_1_1_m_c_p23_s17_af463b8a2faf1c3ced7cce2b8fedc5fa0.html#af463b8a2faf1c3ced7cce2b8fedc5fa0">  304</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="classfabgl_1_1_m_c_p23_s17_a18cd651a9bdeba442f663bbd4d6e746a.html#a18cd651a9bdeba442f663bbd4d6e746a">MCP23S17::writePort</a>(<span class="keywordtype">int</span> port, <span class="keywordtype">void</span> <span class="keyword">const</span> * buffer, <span class="keywordtype">size_t</span> length, uint8_t hwAddr)</div><div class="line"><a name="l00305"></a><span class="lineno">  305</span>&#160;{</div><div class="line"><a name="l00306"></a><span class="lineno">  306</span>&#160;  <span class="comment">// - disable sequential mode</span></div><div class="line"><a name="l00307"></a><span class="lineno">  307</span>&#160;  <span class="comment">// - select bank 1 (to avoid switching between A and B registers)</span></div><div class="line"><a name="l00308"></a><span class="lineno">  308</span>&#160;  <a class="code" href="classfabgl_1_1_m_c_p23_s17_a757ff4f7b16a40109207981a8449b68b.html#a757ff4f7b16a40109207981a8449b68b">writeReg</a>(MCP_IOCON, m_IOCON[hwAddr] | MCP_IOCON_SEQOP | MCP_IOCON_BANK);</div><div class="line"><a name="l00309"></a><span class="lineno">  309</span>&#160;</div><div class="line"><a name="l00310"></a><span class="lineno">  310</span>&#160;  spi_device_acquire_bus(m_SPIDevHandle, portMAX_DELAY);</div><div class="line"><a name="l00311"></a><span class="lineno">  311</span>&#160;</div><div class="line"><a name="l00312"></a><span class="lineno">  312</span>&#160;  spi_transaction_ext_t ta = { };</div><div class="line"><a name="l00313"></a><span class="lineno">  313</span>&#160;  ta.command_bits    = 8;</div><div class="line"><a name="l00314"></a><span class="lineno">  314</span>&#160;  ta.address_bits    = 8;</div><div class="line"><a name="l00315"></a><span class="lineno">  315</span>&#160;  ta.base.cmd        = 0b01000000 | (hwAddr &lt;&lt; 1);  <span class="comment">// write</span></div><div class="line"><a name="l00316"></a><span class="lineno">  316</span>&#160;  ta.base.addr       = MCP_BNK1_OLAT + port * 0x10;</div><div class="line"><a name="l00317"></a><span class="lineno">  317</span>&#160;  ta.base.flags      = SPI_TRANS_VARIABLE_CMD | SPI_TRANS_VARIABLE_ADDR;</div><div class="line"><a name="l00318"></a><span class="lineno">  318</span>&#160;  ta.base.length     = 16 + 8 * length;</div><div class="line"><a name="l00319"></a><span class="lineno">  319</span>&#160;  ta.base.rxlength   = 0;</div><div class="line"><a name="l00320"></a><span class="lineno">  320</span>&#160;  ta.base.rx_buffer  = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00321"></a><span class="lineno">  321</span>&#160;  ta.base.tx_buffer  = buffer;</div><div class="line"><a name="l00322"></a><span class="lineno">  322</span>&#160;  spi_device_polling_transmit(m_SPIDevHandle, (spi_transaction_t*) &amp;ta);</div><div class="line"><a name="l00323"></a><span class="lineno">  323</span>&#160;</div><div class="line"><a name="l00324"></a><span class="lineno">  324</span>&#160;  spi_device_release_bus(m_SPIDevHandle);</div><div class="line"><a name="l00325"></a><span class="lineno">  325</span>&#160;</div><div class="line"><a name="l00326"></a><span class="lineno">  326</span>&#160;  <span class="comment">// restore IOCON</span></div><div class="line"><a name="l00327"></a><span class="lineno">  327</span>&#160;  <a class="code" href="classfabgl_1_1_m_c_p23_s17_a757ff4f7b16a40109207981a8449b68b.html#a757ff4f7b16a40109207981a8449b68b">writeReg</a>(MCP_BNK1_IOCON, m_IOCON[hwAddr]);</div><div class="line"><a name="l00328"></a><span class="lineno">  328</span>&#160;}</div><div class="line"><a name="l00329"></a><span class="lineno">  329</span>&#160;</div><div class="line"><a name="l00330"></a><span class="lineno">  330</span>&#160;</div><div class="line"><a name="l00331"></a><span class="lineno"><a class="line" href="classfabgl_1_1_m_c_p23_s17_abacf2f53773618f7bd2b23639fb63034.html#abacf2f53773618f7bd2b23639fb63034">  331</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="classfabgl_1_1_m_c_p23_s17_af5e184c08c0ef35a04b44fb54c323480.html#af5e184c08c0ef35a04b44fb54c323480">MCP23S17::readPort</a>(<span class="keywordtype">int</span> port, <span class="keywordtype">void</span> * buffer, <span class="keywordtype">size_t</span> length, uint8_t hwAddr)</div><div class="line"><a name="l00332"></a><span class="lineno">  332</span>&#160;{</div><div class="line"><a name="l00333"></a><span class="lineno">  333</span>&#160;  <span class="comment">// - disable sequential mode</span></div><div class="line"><a name="l00334"></a><span class="lineno">  334</span>&#160;  <span class="comment">// - select bank 1 (to avoid switching between A and B registers)</span></div><div class="line"><a name="l00335"></a><span class="lineno">  335</span>&#160;  <a class="code" href="classfabgl_1_1_m_c_p23_s17_a757ff4f7b16a40109207981a8449b68b.html#a757ff4f7b16a40109207981a8449b68b">writeReg</a>(MCP_IOCON, m_IOCON[hwAddr] | MCP_IOCON_SEQOP | MCP_IOCON_BANK);</div><div class="line"><a name="l00336"></a><span class="lineno">  336</span>&#160;</div><div class="line"><a name="l00337"></a><span class="lineno">  337</span>&#160;  spi_device_acquire_bus(m_SPIDevHandle, portMAX_DELAY);</div><div class="line"><a name="l00338"></a><span class="lineno">  338</span>&#160;</div><div class="line"><a name="l00339"></a><span class="lineno">  339</span>&#160;  spi_transaction_ext_t ta = { };</div><div class="line"><a name="l00340"></a><span class="lineno">  340</span>&#160;  ta.command_bits    = 8;</div><div class="line"><a name="l00341"></a><span class="lineno">  341</span>&#160;  ta.address_bits    = 8;</div><div class="line"><a name="l00342"></a><span class="lineno">  342</span>&#160;  ta.base.cmd        = 0b01000001 | (hwAddr &lt;&lt; 1);  <span class="comment">// read</span></div><div class="line"><a name="l00343"></a><span class="lineno">  343</span>&#160;  ta.base.addr       = MCP_BNK1_GPIO + port * 0x10;</div><div class="line"><a name="l00344"></a><span class="lineno">  344</span>&#160;  ta.base.flags      = SPI_TRANS_VARIABLE_CMD | SPI_TRANS_VARIABLE_ADDR;</div><div class="line"><a name="l00345"></a><span class="lineno">  345</span>&#160;  ta.base.length     = 16 + 8 * length;</div><div class="line"><a name="l00346"></a><span class="lineno">  346</span>&#160;  ta.base.rxlength   = 8 * length;</div><div class="line"><a name="l00347"></a><span class="lineno">  347</span>&#160;  ta.base.rx_buffer  = buffer;</div><div class="line"><a name="l00348"></a><span class="lineno">  348</span>&#160;  ta.base.tx_buffer  = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00349"></a><span class="lineno">  349</span>&#160;  spi_device_polling_transmit(m_SPIDevHandle, (spi_transaction_t*) &amp;ta);</div><div class="line"><a name="l00350"></a><span class="lineno">  350</span>&#160;</div><div class="line"><a name="l00351"></a><span class="lineno">  351</span>&#160;  spi_device_release_bus(m_SPIDevHandle);</div><div class="line"><a name="l00352"></a><span class="lineno">  352</span>&#160;</div><div class="line"><a name="l00353"></a><span class="lineno">  353</span>&#160;  <span class="comment">// restore IOCON</span></div><div class="line"><a name="l00354"></a><span class="lineno">  354</span>&#160;  <a class="code" href="classfabgl_1_1_m_c_p23_s17_a757ff4f7b16a40109207981a8449b68b.html#a757ff4f7b16a40109207981a8449b68b">writeReg</a>(MCP_BNK1_IOCON, m_IOCON[hwAddr]);</div><div class="line"><a name="l00355"></a><span class="lineno">  355</span>&#160;}</div><div class="line"><a name="l00356"></a><span class="lineno">  356</span>&#160;</div><div class="line"><a name="l00357"></a><span class="lineno">  357</span>&#160;</div><div class="line"><a name="l00358"></a><span class="lineno">  358</span>&#160;</div><div class="line"><a name="l00359"></a><span class="lineno">  359</span>&#160;</div><div class="line"><a name="l00360"></a><span class="lineno">  360</span>&#160;</div><div class="line"><a name="l00361"></a><span class="lineno">  361</span>&#160;</div><div class="line"><a name="l00362"></a><span class="lineno">  362</span>&#160;</div><div class="line"><a name="l00363"></a><span class="lineno">  363</span>&#160;} <span class="comment">// fabgl namespace</span></div><div class="line"><a name="l00364"></a><span class="lineno">  364</span>&#160;</div><div class="ttc" id="classfabgl_1_1_m_c_p23_s17_afe1923d1107ce527071d3d0b0dc50b3a_html_afe1923d1107ce527071d3d0b0dc50b3a"><div class="ttname"><a href="classfabgl_1_1_m_c_p23_s17_afe1923d1107ce527071d3d0b0dc50b3a.html#afe1923d1107ce527071d3d0b0dc50b3a">fabgl::MCP23S17::readGPIO</a></div><div class="ttdeci">bool readGPIO(int gpio, uint8_t hwAddr=0)</div><div class="ttdoc">Reads input status of a pin. </div><div class="ttdef"><b>Definition:</b> <a href="_m_c_p23_s17_8cpp_source.html#l00274">MCP23S17.cpp:274</a></div></div>
<div class="ttc" id="group___enumerations_ga8389ac8ebb8a33d21364f84ddfa64c00_html_gga8389ac8ebb8a33d21364f84ddfa64c00a324118a6721dd6b8a9b9f4e327df2bf5"><div class="ttname"><a href="group___enumerations_ga8389ac8ebb8a33d21364f84ddfa64c00.html#gga8389ac8ebb8a33d21364f84ddfa64c00a324118a6721dd6b8a9b9f4e327df2bf5">fabgl::MCPDir::Input</a></div></div>
<div class="ttc" id="group___enumerations_ga5d4cf45276f202b6a848d0baf97adea0_html_gga5d4cf45276f202b6a848d0baf97adea0ade1d97e9e28e4b67a2a96c2b400ca4b1"><div class="ttname"><a href="group___enumerations_ga5d4cf45276f202b6a848d0baf97adea0.html#gga5d4cf45276f202b6a848d0baf97adea0ade1d97e9e28e4b67a2a96c2b400ca4b1">fabgl::ChipPackage::ESP32D0WDQ5</a></div></div>
<div class="ttc" id="classfabgl_1_1_m_c_p23_s17_a29921f863c2024cd62bb9596f93f9f0e_html_a29921f863c2024cd62bb9596f93f9f0e"><div class="ttname"><a href="classfabgl_1_1_m_c_p23_s17_a29921f863c2024cd62bb9596f93f9f0e.html#a29921f863c2024cd62bb9596f93f9f0e">fabgl::MCP23S17::writeReg16</a></div><div class="ttdeci">void writeReg16(uint8_t addr, uint16_t value, uint8_t hwAddr=0)</div><div class="ttdoc">Writes 16 bit value to two consecutive registers. </div><div class="ttdef"><b>Definition:</b> <a href="_m_c_p23_s17_8cpp_source.html#l00193">MCP23S17.cpp:193</a></div></div>
<div class="ttc" id="classfabgl_1_1_m_c_p23_s17_ae09cec89e003ed8907ffcae9afcc86aa_html_ae09cec89e003ed8907ffcae9afcc86aa"><div class="ttname"><a href="classfabgl_1_1_m_c_p23_s17_ae09cec89e003ed8907ffcae9afcc86aa.html#ae09cec89e003ed8907ffcae9afcc86aa">fabgl::MCP23S17::readReg</a></div><div class="ttdeci">uint8_t readReg(uint8_t addr, uint8_t hwAddr=0)</div><div class="ttdoc">Reads 8 bit value from an internal register. </div><div class="ttdef"><b>Definition:</b> <a href="_m_c_p23_s17_8cpp_source.html#l00171">MCP23S17.cpp:171</a></div></div>
<div class="ttc" id="group___enumerations_ga8389ac8ebb8a33d21364f84ddfa64c00_html_ga8389ac8ebb8a33d21364f84ddfa64c00"><div class="ttname"><a href="group___enumerations_ga8389ac8ebb8a33d21364f84ddfa64c00.html#ga8389ac8ebb8a33d21364f84ddfa64c00">fabgl::MCPDir</a></div><div class="ttdeci">MCPDir</div><div class="ttdoc">Represents GPIO directioon. </div><div class="ttdef"><b>Definition:</b> <a href="_m_c_p23_s17_8h_source.html#l00126">MCP23S17.h:126</a></div></div>
<div class="ttc" id="classfabgl_1_1_m_c_p23_s17_af5e184c08c0ef35a04b44fb54c323480_html_af5e184c08c0ef35a04b44fb54c323480"><div class="ttname"><a href="classfabgl_1_1_m_c_p23_s17_af5e184c08c0ef35a04b44fb54c323480.html#af5e184c08c0ef35a04b44fb54c323480">fabgl::MCP23S17::readPort</a></div><div class="ttdeci">uint8_t readPort(int port, uint8_t hwAddr=0)</div><div class="ttdoc">Gets status of input pins of specified port. </div><div class="ttdef"><b>Definition:</b> <a href="_m_c_p23_s17_8h_source.html#l00365">MCP23S17.h:365</a></div></div>
<div class="ttc" id="classfabgl_1_1_m_c_p23_s17_ab205baa284c3197865fef390a0304355_html_ab205baa284c3197865fef390a0304355"><div class="ttname"><a href="classfabgl_1_1_m_c_p23_s17_ab205baa284c3197865fef390a0304355.html#ab205baa284c3197865fef390a0304355">fabgl::MCP23S17::begin</a></div><div class="ttdeci">bool begin(int MISO=-1, int MOSI=-1, int CLK=-1, int CS=-1, int CSActiveState=-1, int host=HSPI_HOST)</div><div class="ttdoc">Initializes MCP23S17 driver. </div><div class="ttdef"><b>Definition:</b> <a href="_m_c_p23_s17_8cpp_source.html#l00050">MCP23S17.cpp:50</a></div></div>
<div class="ttc" id="classfabgl_1_1_m_c_p23_s17_a1762512f6b6a1b4149af5778d048fa26_html_a1762512f6b6a1b4149af5778d048fa26"><div class="ttname"><a href="classfabgl_1_1_m_c_p23_s17_a1762512f6b6a1b4149af5778d048fa26.html#a1762512f6b6a1b4149af5778d048fa26">fabgl::MCP23S17::writeGPIO</a></div><div class="ttdeci">void writeGPIO(int gpio, bool value, uint8_t hwAddr=0)</div><div class="ttdoc">Sets output status of a pin. </div><div class="ttdef"><b>Definition:</b> <a href="_m_c_p23_s17_8cpp_source.html#l00265">MCP23S17.cpp:265</a></div></div>
<div class="ttc" id="classfabgl_1_1_m_c_p23_s17_af8a4b526fa1bbd378c9a65410795159c_html_af8a4b526fa1bbd378c9a65410795159c"><div class="ttname"><a href="classfabgl_1_1_m_c_p23_s17_af8a4b526fa1bbd378c9a65410795159c.html#af8a4b526fa1bbd378c9a65410795159c">fabgl::MCP23S17::disableInterrupt</a></div><div class="ttdeci">void disableInterrupt(int gpio, uint8_t hwAddr=0)</div><div class="ttdoc">Disables any interrupt on the specified pin. </div><div class="ttdef"><b>Definition:</b> <a href="_m_c_p23_s17_8cpp_source.html#l00297">MCP23S17.cpp:297</a></div></div>
<div class="ttc" id="classfabgl_1_1_m_c_p23_s17_aaf81d3fdaf258088d7692fa70cece087_html_aaf81d3fdaf258088d7692fa70cece087"><div class="ttname"><a href="classfabgl_1_1_m_c_p23_s17_aaf81d3fdaf258088d7692fa70cece087.html#aaf81d3fdaf258088d7692fa70cece087">fabgl::MCP23S17::end</a></div><div class="ttdeci">void end()</div><div class="ttdoc">Deinitializes MCP23S17 driver. </div><div class="ttdef"><b>Definition:</b> <a href="_m_c_p23_s17_8cpp_source.html#l00112">MCP23S17.cpp:112</a></div></div>
<div class="ttc" id="namespacefabgl_html"><div class="ttname"><a href="namespacefabgl.html">fabgl</a></div><div class="ttdef"><b>Definition:</b> <a href="canvas_8cpp_source.html#l00036">canvas.cpp:36</a></div></div>
<div class="ttc" id="classfabgl_1_1_m_c_p23_s17_a757ff4f7b16a40109207981a8449b68b_html_a757ff4f7b16a40109207981a8449b68b"><div class="ttname"><a href="classfabgl_1_1_m_c_p23_s17_a757ff4f7b16a40109207981a8449b68b.html#a757ff4f7b16a40109207981a8449b68b">fabgl::MCP23S17::writeReg</a></div><div class="ttdeci">void writeReg(uint8_t addr, uint8_t value, uint8_t hwAddr=0)</div><div class="ttdoc">Writes 8 bit value to an internal register. </div><div class="ttdef"><b>Definition:</b> <a href="_m_c_p23_s17_8cpp_source.html#l00154">MCP23S17.cpp:154</a></div></div>
<div class="ttc" id="group___enumerations_ga5d4cf45276f202b6a848d0baf97adea0_html_gga5d4cf45276f202b6a848d0baf97adea0a5d8d61514b6162c2cf210601418a160f"><div class="ttname"><a href="group___enumerations_ga5d4cf45276f202b6a848d0baf97adea0.html#gga5d4cf45276f202b6a848d0baf97adea0a5d8d61514b6162c2cf210601418a160f">fabgl::ChipPackage::ESP32PICOD4</a></div></div>
<div class="ttc" id="classfabgl_1_1_m_c_p23_s17_abab6c21e5930b8616afec12a6b0778ca_html_abab6c21e5930b8616afec12a6b0778ca"><div class="ttname"><a href="classfabgl_1_1_m_c_p23_s17_abab6c21e5930b8616afec12a6b0778ca.html#abab6c21e5930b8616afec12a6b0778ca">fabgl::MCP23S17::enableINTOpenDrain</a></div><div class="ttdeci">void enableINTOpenDrain(bool value, uint8_t hwAddr=0)</div><div class="ttdoc">Enables/disables the INT pin open-drain. </div><div class="ttdef"><b>Definition:</b> <a href="_m_c_p23_s17_8cpp_source.html#l00238">MCP23S17.cpp:238</a></div></div>
<div class="ttc" id="group___enumerations_gacca22cd3567afc98587db31349ba00c7_html_gacca22cd3567afc98587db31349ba00c7"><div class="ttname"><a href="group___enumerations_gacca22cd3567afc98587db31349ba00c7.html#gacca22cd3567afc98587db31349ba00c7">fabgl::MCPIntTrigger</a></div><div class="ttdeci">MCPIntTrigger</div><div class="ttdoc">Represents interrupt trigger mode. </div><div class="ttdef"><b>Definition:</b> <a href="_m_c_p23_s17_8h_source.html#l00135">MCP23S17.h:135</a></div></div>
<div class="ttc" id="_m_c_p23_s17_8h_html"><div class="ttname"><a href="_m_c_p23_s17_8h.html">MCP23S17.h</a></div><div class="ttdoc">This file contains the MCP23S17 driver class. </div></div>
<div class="ttc" id="group___enumerations_gacca22cd3567afc98587db31349ba00c7_html_ggacca22cd3567afc98587db31349ba00c7a6ca33b1f5de2b2497a794ae17e9f25ed"><div class="ttname"><a href="group___enumerations_gacca22cd3567afc98587db31349ba00c7.html#ggacca22cd3567afc98587db31349ba00c7a6ca33b1f5de2b2497a794ae17e9f25ed">fabgl::MCPIntTrigger::DefaultChange</a></div></div>
<div class="ttc" id="classfabgl_1_1_m_c_p23_s17_a9c2b2fb01c26e9d23bf985a960157429_html_a9c2b2fb01c26e9d23bf985a960157429"><div class="ttname"><a href="classfabgl_1_1_m_c_p23_s17_a9c2b2fb01c26e9d23bf985a960157429.html#a9c2b2fb01c26e9d23bf985a960157429">fabgl::MCP23S17::setINTActiveHigh</a></div><div class="ttdeci">void setINTActiveHigh(bool value, uint8_t hwAddr=0)</div><div class="ttdoc">Sets the polarity of the INT pins. </div><div class="ttdef"><b>Definition:</b> <a href="_m_c_p23_s17_8cpp_source.html#l00244">MCP23S17.cpp:244</a></div></div>
<div class="ttc" id="classfabgl_1_1_m_c_p23_s17_a0f75f7eae543df606255fb17aaff4fcd_html_a0f75f7eae543df606255fb17aaff4fcd"><div class="ttname"><a href="classfabgl_1_1_m_c_p23_s17_a0f75f7eae543df606255fb17aaff4fcd.html#a0f75f7eae543df606255fb17aaff4fcd">fabgl::MCP23S17::configureGPIO</a></div><div class="ttdeci">void configureGPIO(int gpio, MCPDir dir, bool pullup=false, uint8_t hwAddr=0)</div><div class="ttdoc">Configure a pin direction and pullup. </div><div class="ttdef"><b>Definition:</b> <a href="_m_c_p23_s17_8cpp_source.html#l00250">MCP23S17.cpp:250</a></div></div>
<div class="ttc" id="classfabgl_1_1_m_c_p23_s17_a18cd651a9bdeba442f663bbd4d6e746a_html_a18cd651a9bdeba442f663bbd4d6e746a"><div class="ttname"><a href="classfabgl_1_1_m_c_p23_s17_a18cd651a9bdeba442f663bbd4d6e746a.html#a18cd651a9bdeba442f663bbd4d6e746a">fabgl::MCP23S17::writePort</a></div><div class="ttdeci">void writePort(int port, uint8_t value, uint8_t hwAddr=0)</div><div class="ttdoc">Sets status of output pins of specified port. </div><div class="ttdef"><b>Definition:</b> <a href="_m_c_p23_s17_8h_source.html#l00350">MCP23S17.h:350</a></div></div>
<div class="ttc" id="classfabgl_1_1_m_c_p23_s17_a51561306fb349bc2978919958cbfda52_html_a51561306fb349bc2978919958cbfda52"><div class="ttname"><a href="classfabgl_1_1_m_c_p23_s17_a51561306fb349bc2978919958cbfda52.html#a51561306fb349bc2978919958cbfda52">fabgl::MCP23S17::initDevice</a></div><div class="ttdeci">void initDevice(uint8_t hwAddr)</div><div class="ttdoc">Initializes additional MCP23S17 devices connected to the same SPI bus but with a different hardware a...</div><div class="ttdef"><b>Definition:</b> <a href="_m_c_p23_s17_8cpp_source.html#l00105">MCP23S17.cpp:105</a></div></div>
<div class="ttc" id="classfabgl_1_1_m_c_p23_s17_a193701415e90c6513fa98fd5303ad8c8_html_a193701415e90c6513fa98fd5303ad8c8"><div class="ttname"><a href="classfabgl_1_1_m_c_p23_s17_a193701415e90c6513fa98fd5303ad8c8.html#a193701415e90c6513fa98fd5303ad8c8">fabgl::MCP23S17::enableINTMirroring</a></div><div class="ttdeci">void enableINTMirroring(bool value, uint8_t hwAddr=0)</div><div class="ttdoc">Enables/disables INTs pins mirroring. </div><div class="ttdef"><b>Definition:</b> <a href="_m_c_p23_s17_8cpp_source.html#l00232">MCP23S17.cpp:232</a></div></div>
<div class="ttc" id="classfabgl_1_1_m_c_p23_s17_a6ce7f6e8f2563790be2cb010d99a2947_html_a6ce7f6e8f2563790be2cb010d99a2947"><div class="ttname"><a href="classfabgl_1_1_m_c_p23_s17_a6ce7f6e8f2563790be2cb010d99a2947.html#a6ce7f6e8f2563790be2cb010d99a2947">fabgl::MCP23S17::readReg16</a></div><div class="ttdeci">uint16_t readReg16(uint8_t addr, uint8_t hwAddr=0)</div><div class="ttdoc">Reads 16 bit value from two consecutive registers. </div><div class="ttdef"><b>Definition:</b> <a href="_m_c_p23_s17_8cpp_source.html#l00210">MCP23S17.cpp:210</a></div></div>
<div class="ttc" id="classfabgl_1_1_m_c_p23_s17_ac85086c7d62df2eace4d8fa2be5a6987_html_ac85086c7d62df2eace4d8fa2be5a6987"><div class="ttname"><a href="classfabgl_1_1_m_c_p23_s17_ac85086c7d62df2eace4d8fa2be5a6987.html#ac85086c7d62df2eace4d8fa2be5a6987">fabgl::MCP23S17::enableInterrupt</a></div><div class="ttdeci">void enableInterrupt(int gpio, MCPIntTrigger trigger, bool defaultValue=false, uint8_t hwAddr=0)</div><div class="ttdoc">Enables interrupt on the specific pin. </div><div class="ttdef"><b>Definition:</b> <a href="_m_c_p23_s17_8cpp_source.html#l00280">MCP23S17.cpp:280</a></div></div>
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